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Finding the Fourth Proportional to 304,068.48, 455,909.54 and 266,703.60

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Solution

The fourth proportional to 304,068.48, 455,909.54 and 266,703.60 is: 399,885.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,068.48 : 455,909.54 = 266,703.60 : x
  2. Step 2: Convert to fraction form
    304,068.48/455,909.54 = 266,703.60/x
  3. Step 3: Cross multiply
    304,068.48x = 455,909.54 × 266,703.60
  4. Step 4: Simplify right side
    304,068.48x = 121,592,715,592.34
  5. Step 5: Solve for x
    x = 121,592,715,592.34/304,068.48
  6. Step 6: Final answer
    x = 399,885.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.